Chapter 3. REPAIR OF BORESIGHT ASSEMBLY, GROUND SUPPORT EQUIPMENT

TM 9-4931-583-30&P

CHAPTER 3

REPAIR OF BORESIGHT ASSEMBLY, GROUND SUPPORT EQUIPMENT

BORESIGHT ASSEMBLY REPAIR

SECTION I.

3-1.

General.

The boresight assembly

(2) Dent repair.

consists of a series of tubes and blocks grouped

t o g e t h e r i n s u b a s s e m b l i e s . Repair of the

(a) Using scouring pads, remove paint from

assembly is made by replacement of a

dent and surrounding area.

subassembly. Limited repair is allowed at AVIM

to some subassemblies.

(b) Replace part if cracked.

3-2.

Repair of Boresight Assembly.

(c) If dented only, paint cleaned area with

polyamide epoxy primer.

Expendable Supplies and Materials List

(3) Replace frame assembly if alignment

Part No./

blocks (10, 14, 17, 24, 28 and 31, figure C-3) have

Specification

Nomenclature

b e e n shifted on mounting surfaces, blocks

damaged, fittings damaged, or frame warped or

bent until self-alignment is not within tolerance.

Pads, Scouring

L-P-50,

Type I. Class 1

Polyamide Epoxy Primer

MIL-P-23377,

b. Repair of Right Gun Frame Assembly.

Class 2

WD 40 MIL-C-23411

Compound, Corrosion

Preventive

(1) Remove frame assembly (3, figure 1-1)

MIL-13-121,

from boresight assembly by disconnecting frame

Barrier Material

Grade A

assembly fitting and removing assembly.

PPP-T-60,

Tape, Pressure Sensitive

Type H

(2) Dent repair.

(a) Using scouring pads, remove paint from

NOTE

dent and surrounding area.

Parts replacement is required when

(b) Replace part if cracked.

damaged to the extent that boresight

a s s e m b l y self-alignment cannot be

(c) If dented only, paint cleaned area with

attained.

polyamide epoxy primer.

U n s e r v i c e a b l e assemblies will be

shipped to depot for repair.

(3) Disassemble alignment assembly as

required to replace failed part. Refer to figure C-4

a. Repair of Main Frame Assembly.

for breakdown and parts identification numbers

unless otherwise indicated.

(1) Remove main frame assembly (18, figure

1-1) from boresight assembly. Refer to Chapter 2,

(a) Remove alignment assembly fkom

paragraph 2-5.

frame by removing three bolts(1) and washers (2).

NOTE

(b) Remove two nuts (11) and setscrews

No disassembly of main frame assembly

(10) and remove base plate assembly (15). Remove

is allowed.

setscrew (14) and nut (12) from base plate.

3-1